Panasonic TH-L32C5X Schematic

ORDER NO. MTV1205077CE

LCD TV

Model No. TH-L32C5X

TH-L42U5X
TH-L32C5K
TH-L42U5K
TH-L32C58K
TH-L42U58K
TH-L32C59K
TH-L42U59K
TH-L32C5T
TH-L42U5T
TH-L32C5V
TH-L42U5V
TH-L32C5M
TH-L42U5M
TH-L42U5G

©Panasonic Corporation 2012.
Unauthorized copying and distribution is a
violation of law.

CONTENTS

1. Safety precautions .................................................................................................

2. Alignment instructions and method of software upgrading.....................................

3. Working principle analysis of the unit...................................................................

4. Specifications.......................................................................................................15

5. Block diagram ......................................................................................................16

6. IC block diagram..................................................................................................24

7. Wiring diagram ...................................................................................................

8. Troubleshooting guide..........................................................................................

9. Exploded View.....................................................................................................36

10. Replacement Parts List......................................................................................40

11. Disassembly and Assembly Instructions............................................................42

12. Boards Layout....................................................................................................52

3

5

14

28

32

2

Attention:

please read the following points carefully.

Safety precautions

This service manual is only for service personnel to take reference with. Before

servicing

1. Instructions

Be sure to switch off
inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production
process!):

a) Do not touch here and there by hand at will;
b) Be sure to use anti static electric iron;
c) It’s a must for the welder to wear anti static gloves.
Please refer to the detailed list before replacing components that have special safety requirements.
Do not change the specs and type at will.

the power supply before

replacing or welding any components or

2. Points for attention in servicing of LCD

2.1 Screens are different from one model to another and therefore not interchangeable. Be sure to

Use the screen of the original model for replacement.

2.2 The operation voltage of LCD screen is
protecting yourself and the machine when testing the system in the course of normal operation or
right after the power is switched off. Please do not touch the circuit or the metal part of the module

high voltage. Be

sure to take proper measures in

That is in operation mode. Relevant operation is possible only one minute after the power is switched
off.

2.3 Do not use any adapter that is not identical with the TV set. Otherwise it will cause fire or damage
to the set.

2.4 Never operate the set or do any installation work in bad environment such as wet bathroom,

laundry, kitchen, or nearby fire source, heating equipment and devices or exposure to sunlight etc.
Otherwise

2.5 If any foreign substance such as water, liquid, metal slices or other matters happens to fall into the

module, be sure to cut the power off immediately and do not move anything on the module lest it should
cause fire or electric shock due to contact with the high voltage or short circuit.

2.6 Should there be smoke, abnormal smell or sound from the module, please shut the power off at

once. Likewise, if the screen is not working after the power is on or in the course of operation, the
power must be cut off immediately and no more operation is allowed under the same condition.

2.7 Do not pull out or plug in the connection wire when the module is in operation or just after the

power is off because in this case relatively high voltage still remains in the capacitor of the driving
circuit. Please wait at least one minute before the pulling out or plugging in the connection wire.

2.8 When operating or installing LCD please don’t subject the LCD components to bending, twisting or

extrusion, collision lest mishap should result.

2.9 As most of the circuitry in LCD TV set is composed of CMOS integrated circuits, it’s necessary to

pay attention to anti statics. Before servicing LCD TV make sure to take anti static measure and
ensure full grounding for all the parts that have to be grounded.

bad effect will result.

2.10 There are lots of connection wires between parts behind the LCD screen. When servicing or

moving the set please take care not to touch or scratch them. Once they are damaged the screen

be

would

If the connection wires, connections or components fixed by the thermo tropic glue need to disengage
when service, please soak the thermo tropic glue into the alcohol and then pull them out in case of
damage.

unable to work and no way to get it repaired.

3

2.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead to

breakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong case
before the transportation or handling.

2.12 For the storage make sure to put it in a place where the environment can be controlled so as to

prevent the temperature and humidity from exceeding the limits as specified in the manual. For
prolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in one
place. The ambient conditions are tabulated as follows:

Temperature

Scope for operation

0

~ + 35

oC

Humidity

2.13 Display of a fixed picture for a long time may result in appearance of picture residue on the

screen, as commonly called “ghost shadow”. The extent of the residual picture varies with the maker
of LCD screen. This phenomenon doesn’t represent failure. This “ghost shadow” may remain
in the picture for a period of time (several minutes). But when operating it please avoid displaying still
picture in high brightness for a long time.

Scope for storage

Scope for operation

Scope for storage

0 ~

+ 60oC

20% ~

5% ~ 90%

80

%

3. Points for attention during installation

3.1 The front panel of LCD screen is of glass. When installing it please make sure to put it in place.

3.2 For service or installation it’s necessary to use specified screw lest it should damage the screen.

3.3 Be sure to take anti dust measures. Any foreign substance that happens to fall down between the

screen and the glass will affect the receiving and viewing effect

3.4 When dismantling or mounting the protective partition plate that is used for anti vibration and

insulation please take care to keep it in intactness so as to avoid hidden trouble.

3.5 Be sure to protect the cabinet from damage or scratch during service, dismantling or mounting.

4

2. Alignment instructions

(1) Test equipment

VG-859 (YPbPr, VGA, HDMI signal generator)
FLUKE 54200(TV signal generator)
CA210 (white balancer)

(2) Power test

Connect main board, power board and IR board according the wiring diagram, connect
the power and press power key (Remote controller or Keypad) button to turn on the TV.
a) Test the pin voltage of P802/power board , the data is shown in table1:

Table1

voltage data of P802

For 32”&42”

P802 Pin1,2 Pin3,4 Pin5,6,7

Voltage GND 11.4V~12.6V GND 11.4V~12.6V 4.75V~5.25V

For 32”&42”

Pin12 Pin13 Pin 14 Pin15 Pin16

On:2.5V-5.25V

Off: 0-0.5V

Normal:0V~0.5V

Abnormal :Open drain

On:2.5V-5.25V

Off: 0-0.5V

Pin8,9 Pin10,11

Duty 20%~100% NC

5

(3) Alignment flow-chart

The alignment flow-chart is shown as fig-1

Connect to the center signal source and check each
Function of TV (station leaking, analog control, etc.)

Check the output of earphone and speaker.

Check if DDC, HDCP KEY, FLASH are written

Combined test for general assembly

White balance adjustment

Input AV signal and check the function

Input HD signal and check the function of YPbPr

Input VGA signal and check if the display is normal, check
the function (analog control), horizontal/vertical center, etc.

Input USB signal and check if the display is normal, check
the function (analog control), horizontal/vertical center, etc.

Input HDMI signal and check if the display is normal, check
the function (analog control), horizontal/vertical center, etc.

Preset ex-factory

Check the accessories and packing

Fig-1 adjustment flow-chart

6

(4) Adjustment instruction

At any input source then press the “Mute” (Remote control) and External Manual key to enter factory mode

During Factory menu, if “Mute” (Remote control) key is pushed, system will exit factory mode.

4-1. Source Calibration

4-1.1. Set the signal generator to input sources Component on LCD-TV; ASTRO-859 signal setting to NTSC-M

(PG2 mode Timing 924 and Pattern 984 SMPTE Color Bar.)

4-1.2. Entering into factory Mode: Press up or down key of remote control to select “Auto Calibration”, Press

「「「「>」」」」

key to enter the item.

-> Source calibration performed automatically when finished that will show OK.
Repeat step 2 to do VGA input sources,
ASTRO-859 signal setting to1024X768 60Hz. (PG2 mode: Timing 963 and Pattern 942 16step H-grayscale +
white border.)

7

SPC32P,

4-2. Color Temperature Adjustment & Check

4-2.1. Set the signal generator to RGB, 1024*768, 60HZ(ASTRO-859: PG1 856), Level: 77(30%) or
178(70%). Full white pattern. (RGB gain and offset all should not over 128,and one of RGB gain and offset

have to be setting on 110. )

4-2.2. Press up or down key of remote control to select “Cool”, Press

RGAIN, GGAIN, BGAIN, ROFFSET, GOFFSET, BOFFSET, drive values are set for Warm, Normal,
and Cool independently.

「「「「OK」」」」

key to enter the item.

Specification

Model Color x y

Temperature

SPC22S,

Cool

0.273 0.28 70IRE

0.274 0.284 30IRE

Signal

Level

SPC32S,

0.289 0.306 70IRE

0.291 0.306 30IRE

0.318 0.331 70IRE

0.322 0.325 30IRE

Tolerance = +/-0.005

SPC42P,

Normal

Warm

8

4-2.3. Select 「Warm」

Step 1.First Turning Gain parts of RGB.

(1) Warm spec.:
x= 0.318±0.005
y= 0.331±0.005

(2) If the x and y value are larger than specification,

Decrease R GAIN drive from default value.
Increase B GAIN drive from default value.

(3) If the x or y or both x and y value is/are smaller than specification.

Decrease B GAIN drive from default value

(4) According to a x and y value, please following adjustment of (4)-1 or (4)-2.

(4)-1 If x value is higher than spec

Decrease R GAIN drive from default value.
Increase B GAIN drive from default value.

(4)-2 If y value is higher than spec,

Decrease B GAIN drive from default value

Step 2.When finish Gain parts, then turning OFFSET parts

「

Select

(1) Medium spec.: (Same as the Gain session )
x= 0.289±0.005
y= 0.306±0.005

(2) If the x and y value are larger than specification,
Decrease R OFFSET drive from default value.
Increase B OFFSET drive from default value.

(3) If the x or y or both x and y value is/are smaller than specification.

Decrease B OFFSET drive from default value

(4) According to a x and y value, please following adjustment of (4)-1 or (4)-2.

(4)-1 If x value is higher than spec

Step 3. Than select

y= 0.280±0.005

Normal

Decrease R OFFSET drive from default value.

Increase B OFFSET drive from default value.

(4)-2 If y value is higher than spec,

Decrease B OFFSET drive from default value

Step 3.When finishing OFFSET parts, then recheck Gain parts .unitl Both of them meet the
target specification

x= 0.273±0.005

」

「

Cool」 using same way to adjust the setting.

4-2.4. Exit Factory Mode:

After finish adjusting color temperature press [MENU] to exit factory mode.

(5) Items of Factory menu

When in PC/ Component/ Video (Composite)/ ANT inputs then press the [MUTE] key by remote control and
press [MENU] key by side key over 2 sec to enter factory mode.

During Factory menu, if [EXIT] key is pushed, system will exit factory mode.
Press up and down key can move high light item from Color Temperature -> Shipping -> NV Clear -> Full

Power -> Auto Calibration -> RF Burn In -> Reset -> USB Upgrade -> Write EDID -> Gamma.

Push [OK] or [ > ] key can select high light item function. (Press left and right can adjust value)
Display model name, firmware version and released date on top.

9

Panel size : 22 / 32/ 42

F/W Version

Board Name (PCB Version)

PQ Version

AQ Version

Panel Name (Panel vendor)

1) Factory Color Temp data edit
Press up or down key can select high light item function
Press enter key to enter the item.

-Color temp default preset No (Warm, Medium, Cool).

-R, G, B data for each preset
Press “Up” or “Down” key to select “R”, “G”, “B” item
Press “Left” or “Right” key to set the “R”, “G”, “B” value
Press “MENU” or “EXIT” item to exit to factory mode

2) Shipping mode
Select shipping country then “Reset” for into shipping mode.

10

3) NV CLEAR

Initialize program’s default values to NVRAM for following adjustment items accuracy.

In factory mode it is the first and important step to make sure all values are default value and correct

- Reset settings: Gamma table, Channel table (Favorite channel, Channel label etc.), Model table
(H/V Position, Clock, Phase), Source dependent setting (Contrast, Brightness etc.), Common setting
(Volume, Language etc.), Parental Control (Rating, Password etc), Closed Caption.

To avoid a mistake initial process after factory setting is done. This item will have a check dialog “yes
or no” to do the initial or not.

4) Full power
This is for power consumption testing.
To measure the maximum power consumption of TV set, we adjust the value of following items to

maximum.

- Video: Contrast maximum value, Brightness maximum value, Backlight maximum value.

- Audio: Volume maximum value, Bass default value, Treble default value.
Press enter key to turn on Full Power and OSD stay display until press enter key to recover from Full
Power.

5) Auto Calibration
Source Calibration (gain/offset) must be adjusted color by firmware automatic adjustment in PC,
Composite and Component input source.
This item will have a result dialog “OK” or “NG”.

6) RF Burn In
Use “snow” pattern for burn in. Selected items are “On” and “Off”.
While turn on burn in mode, firmware will automatically turn off “Auto power off” function.
If there is no power supply suddenly, firmware will re-enter burn in mode automatically when power

supply is back
Pressed the “Power” key, firmware will automatically turn off burn in mode.
Burn in mode: Source is “ANT/Cable" and channel is NTSC channel 3.

7) Reset
Reset all settings of OSD menu to default value.

- Reset settings: Channel table, Model table (H/V Position, Clock, Phase), Source dependent setting

(Contrast, Brightness etc.), Common setting (Volume, Language etc.), Parental Control (Rating,

Password etc), Closed Caption.

8) USB Upgrade
Upgrade firmware through USB.

9) Write EDID
Write EDID into VGA and HDMI EEPROM.

This item will have a check dialog “yes or no” to do the initial or not.

10) Gamma
For factory test value of gamma.

(6) Performance check

6-1 TV function
Connect RF to the center signal source, enter Channel menu → auto tuning, check if there are channels be
skipped, check if the picture and speaker are normal.

6-2 AV terminals
Input Video signal, check if the picture and sound are normal.

6-3 YPbPr terminal
Input YUV signal (VG859 signal generator), separately input the YUV signals listed in table4 and check if the
display and sound are normal at any situation (power on, channel switch and format convert, etc.)

11

Table4 YUV signal format

LINE (pixel)

LINE (pixel)

LINE (pixel)

FREQ PERIOD

SYNC

POLARITY

PIXEL

CLOCK

Display

SYNC

WIDTH

BACK

PORCH

MODE

15.734 1716 Negitive 27 1440 124 114

59.94Hz 720x480i

59.94Hz 720x480P

60Hz 1280x720P

60Hz 1920X1080i

60Hz 1920X1080P

LINE(kHz)

FRAME

(Hz)

LINE (pixel)

FIELD
(lines)

LINE

FIELD

(MHz)

FRAME

(lines)

FRAME

(lines)

FRAME

59.94 525 Negitive 480 3 15

31,469 858 Negitive 27 720 62 60

59.94 525 Negitive 480 6 30

45 1650 Positive 74.25 1280 40 220

60 750 Positive 720 5 20

33.75 2200 Positive 74.25 1920 44 148

60 1125 Positive 1080 5 15

67.5 2200 Positive 148.5 1920 44 148

60 1125 Positive 1080 5 36

(lines)

6-4 VGA terminal

Input VGA signal (VG848 signal generator), separately input the signals listed in table5 and check the display and
sound. If the image is deflection of the Horizontal and vertical, select Menu->Setup->Auto Adjust to perform auto­correct.

Table5 VGA signal format

FREQ PERIOD

SYNC

POLARITY

PIXEL

CLOCK

Display

SYNC

WIDTH

BACK

PORCH

Mode

LINE(kHz)

FRAME(Hz)

LINE (pixel)

FIELD(lines)

LINE

FIELD

(MHz)

LINE (pixel)

FRAME(lines)

LINE (pixel)

FRAME

(lines)

LINE (pixel)

FRAME

(lines)

VGA 60Hz 31.469 800 Negative 25.175 640 96 40

640x480 59.941 525 Negative

SVGA 60Hz

37.879 1056 Positive 40 800 128 88

800x600 60.317 628 Positive

480 2 25

600 4 23

XGA 60Hz 48.363 1344 Negative 65 1024 136 160

1024x768 60.004 806 Negative

WXGA 60Hz

47.776 1664 Negative 79.5 1280 128 192

1280x768 59.87 798 Positive

WXGA 60Hz

47.712 1792 Positive 85.5 1360 112 256

1360x768 60.015 795 Positive

768 6 29

768 7 20

768 6 18

6-5 HDMI terminal
Input HDMI signal (VG859 signal generator), separately input the signals listed in table6 and check the display and
sound (32 KHz, 44.1 KHz, 48 KHz) at any situation (power on, channel switch and format convert, etc.)

Table6 HDMI signal format

12

FREQ FREQ PERIOD

LINE (pixel)

SYNC

POLARITY

PIXEL

CLOCK

Display

SYNC

WIDTH

BACK

PORCH

MODE

VGA 60Hz 31.469 800 Negitive 25.175 640 96 40

640x480 59.94 525 Negitive

SVGA 60Hz 37.879 1056 Positive

800x600 60.317 628 Positive

XGA 60Hz 48.363 1344 Negitive

1024x768 60.004 806 Negitive

WXGA 60Hz 47.776 1664 Negitive

1280x768 59.87 798 Positive

WXGA 60Hz 47.712 1792 Positive

1360x768 60.015 795 Positive

59.94Hz 720x480i

59.94 525 Negitive

59.94Hz 720x480P 31.469 858 Negitive

59.94 525 Negitive

60Hz 1280x720P 45 1650 Positive 74.25 1280 40 220

60 750 Positive

60Hz 1920X1080i

60 1125 Positive

60Hz 1920X1080P

60 1125 Positive

24Hz 1920x1080P

24 1125 Positive

6-6 other functions check
a) Check the turn on/turn off timer, sleep timer, picture/sound mode, OSD, stereo and analog TV Teletext, etc.

LINE(kHz)

FRAME(Hz)

15.734 1716 Negitive

33.75 2200 Positive 74.25 1920 44 148

67.5 2200 Positive 148.5 1920 44 148

27 2750 Positive

LINE (pixel)

FIELD(lines)

LINE

FIELD

(MHz)

480 2 25

40 800 128 88

600 4 23

65 1024 136 160

768 6 29

79.5 1280 128 192

768 7 20

85.5 1360 112 256

768 6 18

27 1440 124 114

480 3 15

27 720 62 60

480 6 30

720 5 20

1080 5 15

1080 5 36

74.25 1920 44 148

1080 5 36

FRAME

(lines)

LINE (pixel)

FRAME

(lines)

LINE (pixel)

FRAME

(lines)

(7) USB Software updated

(1) Plug the USB with the firmware file named .
(2) Into Factory mode & select USB upgrade , USB upgrade message would appear automatically.
(3) Select Yes, and then start the upgrading.
(4) Upgrading is starting, please wait for the progress finish.
(5) When the progress completed, press Remote power on .

13

Working principle analysis of the unit

1. PAL/SECAM
Antenna reception, B/G, I, D/K, signal will be send to tuner M40CPT-2PNB-E_1,
be

demodulating and output standard video signal TV-CVBS, and sound SIF signal

TV-CVBS will send to the master control IC SPV7168Mx to video decode, de-interlace and scaler,

and NTSC

signals flow:

t h e n Tuner w i l l

.

then output LVDS level drive for panel display.
The sound IF (SIF) will be fed into SPV7168MX, after demodulating, pre-amplifying, bass adjusting
and volume control, the sound signal will
transf o r m i n t o d i g it a l I 2 S s i g n a l
speaker, another will be sent analog sound signal to

2. Composite & Component signal flow
Composite & Component signal path AV signal switch

be output t wo ways , one wa y will be

and sent to digital amplifier TAS5707,

earphone amplifier TPA6132.

then sent to

by menu “Setup”->“Video1” Input

fed to
SPV7168MX, to perform video decode, de-interlace and scaler, then output LVDS drive level for
panel display.
Audio signal from Composite
volume control, the sound signal will
digit a l I 2 S s i g n a l
sent analog sound signal to

3. PC signal flow

PC signal via terminal
decode,

Sound signal of PC
volume control, the sound signal will
digit a l I 2 S s i g n a l
sent analog sound signal to

4. HDMI signal flow
One HDMI video signals are directly fed to the master control IC SPV7168MX, to digital decode,
image scale, then output LVDS drive level for panel display. HDMI audio signal via decoder built-in
SPV7168MX, to bass adjust and volume control, the sound signal will
way wi l l b e t r a n s f orm i nt o d i g i t a l I 2 S s i g n a l
sent to speaker, another will be sent analog sound signal to

terminal

via matched resistance is fed to SPV7168MX, to bass adjust and

be o u t p u t t w o ways, o n e w a y w i l l b e transf o r m i n t o

and sent to digital amplifier TAS5707,

then sent to speaker, another will be

earphone amplifier TPA6132.

socket

and

image scale, then send to LVDS level drive for panel display.

t e r m i n a l

sent to SPV7168MX,output R/G/B of 24 bit to back end module to

via matched resistance

a n d

be o u t p u t t w o ways, o n e w a y w i l l b e transf o r m i n t o

and sent to digital amplifier TAS5707,

earphone amplifier TPA6132.

then sent to speaker, another will be

and sent to digital amplifier TAS5707,

sent to SPV7168MX, to bass adjust and

be o u t p u t t w o w a y s , on e

then

earphone amplifier TPA6132.

5. Multimedia signal flow

Multimedia signal via USB connector sent to SPV7168MX,
end module to Video decode,
panel display.

de-interlace and

then outp ut

R/G/B of 24 bit to back

image scale, then send to LVDS level drive for

Sound signal of Multimedia signal sent to SPV7168MX, to bass adjust and volume control, the sound
signal will
sent to digital amplifier TAS5707,
earphone amplifier TPA6132

b e o u t p u t t w o ways, o n e w a y w i l l b e t ra n s f o r m i n t o digit a l I 2 S s i g n a l

then sent to speaker, another will be sent analog sound signal to

and

14

4. Specifications

15

PC32P

Block Diagram

Power

16

5-1 Power Block Diagram

SPC32P:

FSP power board:

SPC32P Block Diagram

17

DARFON power board:

18

PB42P

Block Diagram

Power

19

5-1 Power Block Diagram

SPB42P:

FSP power board:

SPB42P Block Diagram

20

DARFON power board:

21

PC32P/PB42P

Block Diagram

ELECTRON

22

25

TUNER(TCL)

AV2

TV CVBS

AV1

Flash RAM 2MB

AV3 (Side)

Audio

RS-232/Tx/Rx

EE PROM

EEPROM

EEPROM

INPUT

M40CTP-2PNB-E1

VGA

INPUT

YPbPr/CVBS1

Audio

INPUT

CVBS2

Audio input

(share PC & HDMI)

India/Asia Models system design

I

CVBS3

Audio

INPUT

HDMI

INPUT

USB

port

24LC02

24LC02

System IC

DDR

256Mb

LCD WXGA

Panel

Keypad

SIF

Sunplus

SPV7168Mx

IR

MX25L16

24LC32

12V

STB 5V

TPA6132

Audio 10W

TI AMP

TAS5707

System Power

Presentation Title | Prosperity | Version 25

Presentation Title | Prosperity | Version

Supply

OUT

EAR

PHONE

23

IC block diagram

1.SUNPLUS SPV7168Mx
Feature:

Graphics and Video Input Port

 Integrate 150MHz 10-bit ADC/PLL
 Support SDTV at 480i/576i and 480p 576p
 Support HDTV at 720p,1080i and 1080p
 Support PC graphics VGA, SVGA, XGA, WXGA, SXGA@75Hz(135M)
 Built-in sync. Processor for separate, composite or sync onY/G
 Image Format Detection/Auto Image Positioning/Auto Phase Detection
 Full SCART support including RGB fast blank
 Configurable 7 analog inputs
 3 RGB/YPbPr analog

HDMI

 HDMI1.3 compliant and DVI 1.0 compliant receiver support up to

225Mhz@1080P 60Hz with 12-bit deep color resolution

 HDCP 1.1 compliant receiver
 Support EIA/CEA-861D compliant resolutions
 Auto audio error detection with programmable soft mute
 Built-in OTP for HDCP key

3D Video Decoder

 Enhanced NTSC/PAL/SECAM video decoder
 3D comb filter for NTSC, PAL I(B,G,H,D,N), PAL-M, PAL-N
 Enhanced NTSC/PAL/SECAM auto detection
 Enhanced Cross-color reduction for NTSC by 3-line comb filtering
 Enhanced Cross-color reduction for PAL by 5-line comb filtering
 Enhanced Motion adaptive 3D Y/C separation comb filter for NTSC/PAL system
 Enhanced Multi-standard VBI data decoder, Teletext 2.5, WSS,VPS,
 Macrovision detection

High Quality Video Processing

 Enhanced pixel-based SDTV/HDTV 3D motion adaptive de-interlacing
 Enhanced 2:2/3:2 film mode detection
 Support Graphics mode frame rate conversion
 Support Video mode frame rate conversion
 2D Edge enhancement
 Dynamic Peaking Filter
 Enhanced Digital Luma Transient Improvement(DLTI)
 Enhanced Digital Color Transient Improvement(DCTI)
 Black/White Level Expansion and Dynamic Contrast
 Flesh tone and RGBYMC color adjustment
 Dark and Gray area UV suppression
 Enhanced 3D motion adaptive noise reduction
 Enhanced De-blocking and de-mosquito filters
 Color management/color temperature adjustment
 Brightness/Contrast/Hue/Saturation adjustment
 Support sRGB/xvYCC color processing for wide gamut panels
 Built-in three 1024-point gamma tables with 12 bits resolution
 Color space conversion, both YCbCr to RGB and RGB toYCbCr
 Built-in temporal/spatial color dithering
 10-bit video/image processing

High Quality Video Scaling Engine

 Advanced sixth-generation scaling engine with Moire Cancellation
 Non-proportional Panorama scaling

24

Multi-standard TV Audio Demodulator and Sound Decoder

 On chip 27MHZ 12-bit SIF ADC
 Support BTSC, A2/Zweiton, NICAM, EIAJ, SECAM, and FM stereo
 Automatic TV-standard detection(ASD)
 Stereo demodulation, SAP demodulation
 Non-standard carrier compatible
 SAP decoding where applicable
 Auto fallback from NICAM where applicable


Embedded OSD Engine

 Built-in programmable OSD engine for two bit-map OSD windows and one

font-based OSD

 1,2,4 and 8-bit per pixel(bit-map OSD)
 Support hardware cursor
 Support VBI data overlay dispaly

Programmable Digital Output for LCD

 Support output sequence mapping for TI and Thine
 Built-in dual-channel 8-bit LVDS Transmitter
 Support display output up to 1920X1200 @60Hz WUXGA reduced blanking
 Support Power Down Sequence
 4-channel PWM backlight intensity control
 Built-in spread spectrum for EMI performance

CPU

 Powerful 32-bit RISC CPU
 MIPS-I instruction with DSP instruction set extension
 4-way 16K bytes instruction cache
 4-way 16K bytes direct-mapped data cache
 MMU, 32-entry TLB
 Industry standard EJTAG interface for debug
 Three UART up to 115200 baud rate
 Four 24-bit up/down timers
 In-System Programming through USB interface or UART interface
 Watchdog timers

Audio Processor

 Channel:L,R,C,S,Sub,Aux1,2 and 3@32kHZ
 5-band equalizer
 3D surround sound
 Bass management
 Volume control,balance and tone control and mute
 Support sub-woofer output
 Sample rate converter
 Output up to 3 sources
 Dolby Surround (VDSII 422 and 423) optional
 SRS TruSurround(XT,WOW,3D Sound) optional
 Support digital audio format MPEG-1,MPEG-2 (Layer I/II/III).WMA optional

decoding

 Room virtualization and bass-redirection
 Audio and video lip synchronization for uncompressed audio output

Miscellaneous

 Built-in TV remote control via infra-red receiver interface
 On chip 16-bit DDR DRAM controller
 Built-in pattern generator for auto testing
 Three UARTs
 Support serial flash interface with 1 or 2 bit mode
 On chip 3-channel, 8-bit ADC for key scan, light detector of SCART-FS signal
 USB 2.0 high speed host controller
 256-pin LQFP

25

2. M40CTP-2PNB-E_1

Analog terrestrial video module

3. TAS5707

20-W Stereo Digital Audio Power Amplifier with EQ and DRC

26

4. TPA6132A2

25-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH POP

SUPPRESSION

27

Wiring Diagram

28

II. Wiring Connection(ELECTRON)

29

III. Wiring Connection(POWER)

30

IV. Wiring Connection(POWER)

31

Trouble shooting

1. Fault clearance

32

2. Troubleshooting guide

The flow chart shown below will help you to troubleshoot your Televison set with it doesn’t display
normally. Each procedure offers a simple way to check for system errors. Before starting, ensure
that there is a signal in and that the Televison is turned on.

2-1 Power LED no light

33

2-2 Has audio but no video out

Has audio but no

video out

ok

ok

ok

Change LCD

Check

backlight

Change

CN203 LVDS

Cable

Plug in

Change

CN203 LVDS

Power 5V

or 12V

MODULE

NG H

Check

CN801

Pin 14

L

Change

Main board

NG

Re-Plug in

NG

Change

Main PCB

Check

P803

Pin5,Pin6,Pin7

H

L

Change to new power board

P/N-32" PK101V2910I OR PK101V2930I

42" PK101V2920I OR PK101V2940I

Change

Panel

2-3 Has video but no audio out step 1

36

2-4 Has video but no audio out step 2

Has video but no Audio

out

Check

Speaker

Wire plug

ok

Change
Speaker

ok

CN801

PIN 3

VCC12_0_AMP

NG

Re-Plug in

NG

Change Speak Unit

Change to new power board

P/N-32" PK101V2910I OR PK101V2930I

42" PK101V2920I OR PK101V2940I

ok

Change Main PCB

35

8

36

42

41

10

42

10

26

20

29

13

39

16

14

17

2

25

18

29

15

22

3

41

28

6

37

43

19

12

29

11

1

25

9

24

25

27

44

21

29

43

23

40

25

27

25

38

45

7

35

34

31

33

32

30

4

5

32

11

1

39

30

37

40

27

15

11

29

39

19

43

33

3

12

6

35

9

30

40

28

43

40

36

16

41

8

7

10

38

5

4

41

21

11

2

11

40

42

31

43

40

11

11

13

40

26

34

20

25

22

23

44

24

14

17

18

10. Replacement Parts List

10-1. TH-L32C5 series

Note: All parts aresupplied by PAVCKM.

Safety Ref.No. Part No. Part Name & Description Pcs Remarks

1 TZZ00000019A PCBA IR/B 1
2 TZZ00000125A FIRMWARE M/B 1
3 L5EDDYY00392 LCD MODU 1
4 TZZ00000030A SPK SET(90d)(PIN12d) 2
5 TZZ00000129A H-CON SET 1
6 TZZ00000033A H-CON SET 1
7 TZZ00000034A H-CON SET 1
8 TZZ00000130A H-CON SET 1

9 TZZ00000131A H-CON SET 1
10 TZZ00000135A PWR CORD(S) Vietnam 1
11 TZZ00000078A LOCKING CABLE TIE 2
12 TZZ00000079A MYLAR AL TAPE 3
13 TZZ00000168A PWR MODU(SPC32PMA) 1
14 TZZ00000025A TOP PANEL BRKT ASSY 2
15 TZZ00000126A BEZEL ASSY(ASIA) 1
16 TZZ00000127A BACK COVER ASSY(ASIA 1
17 TZZ00000128A KEY PLATE ASSY(ASIA) 1
18 TZZ00000044A PANEL BRKT (L) 1
19 TZZ00000045A PANEL BRKT (R) 1
20 TZZ00000046A WALL MOUNT BRKT (L) 1
21 TZZ00000047A WALL MOUNT BRKT (R) 1
22 TZZ00000132A BOTTOM BRKT 1
23 TZZ00000133A POWER CABLE SR BRKT 1
24 TZZ00000050A MAIN PCB BRKT (CMI) 1
25 TZZ00000051A PCB SPRING 2
26 TZZ00000109A PST-12 (GIN LIAN) 1
27 TZZ00000081A ACETIC ACID TYPE 4
28 TZZ00000083A SCREW+LOCK WASHER(8) 9
29 TZZ00000084A SCREW 4
30 TZZ00000086A SCREW 12
31 TZZ00000087A SCREW+WASHER 2
32 TZZ00000088A TAPPING SCREW 4
33 TZZ00000089A TAPPING SCREW 1
34 TZZ00000110A SCREW(NL) 1
35 TZZ00000091A SCREW 10
36 TZZ00000123A RATING-LABEL-L32C58K 1 L32C58K
36 TZZ00000124A RATING LABEL-L32C59K 1 L32C59K
36 TZZ00000134A RATING-LABEL-L32C5K 1 L32C5K
36 TZZ00000140A RATING-LABEL-L32C5M 1 L32C5M
36 TZZ00000142A RATING NP-TH-L32C5T 1 L32C5T
36 TZZ00000144A RATING NP-TH-L32C5V 1 L32C5V
36 TZZ00000146A RATING-LABEL-L32C5X 1 L32C5X
37 TZZ00000136A CARTON-TH-L32C5 1
38 TZZ00000137A MANUAL-32/42 1 L32C5K L32C58K L32C59K
38 TZZ00000141A MANUAL-32/42 1 L32C5M
38 TZZ00000143A MANUAL-32/42 1 L32C5T
38 TZZ00000145A MANUAL-32/42 1 L32C5V
38 TZZ00000147A MANUAL-32/42 1 L32C5X
39 TZZ00000138A KEY LABEL-32C5/42U5 1
40 TZZ00000071A ZIPPERED BAG 1
41 TZZ00000074A PE BAG-STAND 1
42 TZZ00000075A PE BAG-TV 1
43 TZZ00000076A PE BAG 1
44 TZZ00000085A SCREW+2WASHER 4
45 TZZ00000009A REMO CTRL AAA 1
46 TZZ00000029A STAND ASSY 1
47 TZZ00000056A EPS FOAM (T/L) 1
48 TZZ00000057A EPS FOAM (T/R) 1
49 TZZ00000058A EPS FOAM (B/L) 1
50 TZZ00000059A EPS FOAM (B/R) 1

40

10-2. TH-L42U5 series

Note: All parts aresupplied by PAVCKM.

Safety Ref.No. Part No. Part Name & Description Pcs Remarks

1 TZZ00000019A PCBA IR/B 1

2 TZZ00000150A FIRMWARE M/B 1

3 L5EDDYY00390 LCD MODU 1

4 TZZ00000030A SPK SET(90d)(PIN12d) 2

5 TZZ00000154A H-CON SET 1

6 TZZ00000035A H-CON SET 1

7 TZZ00000036A H-CON SET 1

8 TZZ00000155A H-CON SET 1

9 TZZ00000156A H-CON SET 1
10 TZZ00000160A PWR CORD(S) Vietnam 1
11 TZZ00000078A LOCKING CABLE TIE 2
12 TZZ00000079A MYLAR AL TAPE 3
13 TZZ00000170A PWR MODU(SPB42PTA) 1
14 TZZ00000151A BEZEL ASY(ASIA-5＊/5 1
15 TZZ00000152A BACK COVER ASY(ASIA) 1
16 TZZ00000153A KEY PLATE ASY(ASIA) 1
17 TZZ00000041A PANEL BRKT (R) 1
18 TZZ00000097A POWER PCB BRKT 2
19 TZZ00000098A MAIN PCB BRKT 1
20 TZZ00000099A WALL MOUNT BRKT 2
21 TZZ00000042A BOTTOM BRKT 1
22 TZZ00000043A POWER CABLE SR BRKT 1
23 TZZ00000100A PANEL SUPPORT BM 1
24 TZZ00000051A PCB SPRING 2
25 TZZ00000158A ACETIC ACID TAPE 6
26 TZZ00000102A SPONGE 2
27 TZZ00000159A CR-4305 FOAM+F247 1
28 TZZ00000109A PST-12 (GIN LIAN) 1
29 TZZ00000082A SCREW 10
30 TZZ00000083A SCREW+LOCK WASHER(8) 7
31 TZZ00000086A SCREW 17
32 TZZ00000087A SCREW+WASHER 2
33 TZZ00000089A TAPPING SCREW 1
34 TZZ00000090A TAPPING SCREW 2
35 TZZ00000110A SCREW(NL) 7
36 TZZ00000148A RATING-LABEL-L42U58K 1 L42U58K
36 TZZ00000149A RATING LABEL-L42U59K 1 L42U59K
36 TZZ00000157A RATING-LABEL-L42U5G 1 L42U5G
36 TZZ00000163A RATING-LABEL-L42U5K 1 L42U5K
36 TZZ00000164A RATING-LABEL-L42U5M 1 L42U5M
36 TZZ00000165A RATING NP-TH-L42U5T 1 L42U5T
36 TZZ00000166A RATING-LABEL-L42U5V 1 L42U5V
36 TZZ00000167A RATING-LABEL-L42U5X 1 L42U5X
37 TZZ00000161A CARTON-TH-L42U5 1
38 TZZ00000137A MANUAL-32/42 1 L42U5K L42U58K L42U59K
38 TZZ00000141A MANUAL-32/42 1 L42U5M
38 TZZ00000143A MANUAL-32/42 1 L42U5T
38 TZZ00000145A MANUAL-32/42 1 L42U5V
38 TZZ00000147A MANUAL-32/42 1 L42U5X
38 TZZ00000162A MANUAL-32/42 1 L42U5G
39 TZZ00000138A KEY LABEL-32C5/42U5 1
40 TZZ00000071A ZIPPERED BAG 1
41 TZZ00000072A PE BAG-STAND 1
42 TZZ00000073A PE BAG-TV 1
43 TZZ00000076A PE BAG 1
44 TZZ00000085A SCREW+2WASHER 4
45 TZZ00000009A REMO CTRL AAA 1
46 TZZ00000096A STAND ASSY 1
47 TZZ00000103A EPS FOAM (T-L) 1
48 TZZ00000104A EPS FOAM (T-R) 1
49 TZZ00000105A EPS FOAM (B-L) 1
50 TZZ00000106A EPS FOAM (B-R) 1
51 TZZ00000107A EPS FOAM (B-M) 1

41

11 Disassembly and Assembly Instructions(SPC32P)

11.1. Stand base

1. Lay down the unit so that the rear cover faces upward.

2. Remove the 4 screws.

3. Remove the stand bese

11.2. Rear cover

1. Remove the 18 screws.

2. Remove the rear cover.

11.3. Remove AC cord

1. Remove the bushing of the AC cord from the AC cord bracket.

2. Disconnect the connector (P1) of AC cord.

11.4. P-Board

1. Remove the 6 screws.

2. Disconnect the connectors (P1, P2, P3).

3. Remove the P-Board.

11.5. M-Board

1. Remove the 3 screws.

2. Disconnect the connectors (P1, P2, P3,P4).

3. Remove the M-Board.

11.6. Speaker unit

1. Remove the 2 screws.

2. Remove the speaker units.

11.7. IR-Board

1. Remove the 1 screw.

2. Remove the IR-Board.

11.8. Keyplate

1. Remove the 2 screws.

2. Remove the keyplate.

11.9. Metal parts

1. Remove the 7 screws.

2. Remove the metal parts (m1,m2, m3,m4,m5,m6).

11.10. Metal parts

1. Remove the 4 screws.

2. Remove the metal parts (m8,m9,m10).

11.11. LCD Panel

1. Remove the LCD panel.

11 Disassembly and Assembly Instructions(SPB42P)

11.1. Stand

1. Lay down the unit so that the rear cover faces upward.

2. Remove the 4 screws.

3. Remove the stand

11.2. Rear cover

1. Remove the total 19 screws.

2. Remove the rear cover.

11.3. Remove AC cord

1. Remove the bushing of the AC cord from the AC cord bracket.

2. Disconnect the connector (P1) of AC cord.

11.4. P-Board

1. Remove the 6 screws.

2. Disconnect the connectors (P2, P3).

3. Remove the P-Board.

11.5. M-Board

1. Remove the 3 screws.

2. Disconnect the connectors (P1, P2, P3,P4).

3. Remove the M-Board.

4. Remove the PCB-support.

11.6. Speaker unit

1. Remove the 2 screws.

2. Remove the speaker units.

11.7. IR-Board

1. Remove the 1 screw.

2. Remove the IR-Board.

11.8. Metal parts I

1. Remove the 11 screws.

2. Remove the metal parts (m1,m2, m3,m4,m5,m6,m7).

11.9. Metal parts II

1. Remove the 1 screw.

2. Remove the metal part (m8).

11.10. Metal parts III

1. Remove the 1 screw.

2. Remove the metal part (m9).

11.11. Key plate

1. Remove the 2 screws.

2. Remove the key plate.

11.12. LCD Panel

1. Remove the LCD panel.

12. Boards Layout

13

2

Ref No. Board Name Function Remrks

1 PCBA IR/B Remote Receiver, LED

2 FIRMWARE M/B Main Board, Audio & Video Signal Processing
13 PWR MODU Power (AD/DC), DC-DC
16 KEY PLATE ASSY(42")
17 KEY PLATE ASSY(32")

Control Button

All boards are non servicable
and should be exchanged for
service

16

or

17

1

53